Hydrogen Bond Effect in Nonlinear Optical Properties of Azobenzene Derivatives

作     者：Da-qiao Hu Wen-jun Wang Rong-rong Wang Bo Yang Bo Yu 

作者机构：School of Chemistry and Chemical Engineering and Center for Atomic Engineering of Advanced Materials Anhui University Hefei 230039 China Key Laboratory of Soft Matter Chemistry Department of Polymer Science and Engineering Anhui Key Laboratory of Optoelectronic Science and Technology University of Science and Technology of China Hefei 230026 China 

基　　金：the National Natural Science Foundation of China the Natural Science Foundation of Anhui University the Doctor Research Foundation of Anhui University 

出 版 物：《Chinese Journal of Chemical Physics》 (化学物理学报（英文）)

年 卷 期：2015年第28卷第5期

页      码：-页

摘      要：Three kinds of 4-hydroxyl azobenzene compouds with different substituents varied as -NO2, -H, -OCH3in the para-position were synthesized and characterized. Their nonlinear opti- cal properties in tetrahydrofuran (THF) and chloroform (CHCl3) solution were determined using Z-scan technique. The results revealed that the nonlinear absorption (β) and nonlin- ear refraction (γ) values of three azobenzene compounds in THF solution were larger than those in CHCl3 solution. It was mainly due to the regular arrangement and effective π- conjugation of azobenzene molecules caused by the formation of hydrogen bonds between the hydroxyl groups of azobenzene molecules and the oxygen atom of the THF molecules. Among three kinds of azobenzene compounds, the 4-nitro-4′-hydroxyazobenzene (NAzoOH) had the largest coefficients of β and γ values in both THF and CHCl3solution. It was mainly because that a push-pull (D-π-A) electron system was formed by the electron withdrawing nitro-substituent with electron donating hydroxyl-group in both extremities of azobenzene, resulting in a higher electron delocalization.

主 题 词：Azobenzene Nonlinear property Hydrogen bond Substituent Z-scan 

学科分类：081704[081704] 07[理学] 08[工学] 0817[工学-轻工类] 070303[070303] 0703[理学-化学类] 0702[理学-物理学类] 

核心收录：

D　O　I：10.1063/1674-0068/28/cjcp1502073

馆 藏 号：203291236...